Troubleshooting; Frequently Asked Questions (Faq) - Safran WR-Z16 User Manual

Acronyms
WR-ZEN
WR-LEN+
WRZ-OS
9.2

Troubleshooting

This section intends to help the user understand how to identify an issue in your
WR-Z16 device, as well as giving some guidance to figure out the cause of the
problem.
9.2.1

Frequently asked questions (FAQ)

A list of the most commonly asked questions will be described here, as well as the
solutions that can be applied for each of the situations.
Why does the WR-Z16 report link down even if the SFPs are connected
to the WR interfaces?
One of the most common cause of this issue is related to not using match-
ing blue-violet SFPs.
As in White Rabbit it is of uttermost importance to have equal cable
lengths in both directions, a single fiber should be used for sending data
both directions.
Additionally, White Rabbit should follow the 1000BASE-BX10 standard and
use 1310/1490 pairs with a single LC connector. More specifically, the
Switch ports transmitting downstream (to endpoints) should use 1490nm
on the transmitter and 1310nm on the receiver.
The 1310 nm module corresponds to the blue color and the 1490 nm to the
purple one.
What does the Error 500 mean while uploading the firmware? What is
recommended to fix this issue?
In this case, the best modus operandi is to reboot before flashing the
device. Also check the file is not corrupted.
WR-Z16 User Manual
White Rabbit Zynq Embedded Node
White Rabbit Lite Embedded Node Plus
White Rabbit Zynq based (Z16, ZEN, LEN+) Operative System
Description
APPENDIX
155